In hot forging, a heated billet is pressed between dies in a die set to a close to finished product. This process sees large numbers of solid metal parts produced in aluminium alloys, copper alloys, steel or super-alloys where irregular shapes need to be combined with good mechanical properties.
The key to increasing productivity in forging lies in the quality of the tools: excellent hot wear, hot strength, as well as high ductility and toughness.
ASSAB’s steel programme of grades ideal for forging includes QRO 90 Supreme, Unimax, Dievar, Formvar, ASSAB 8407 Supreme and ASSAB 8407 2M.
Each of them has stood the test of time as a reliable forging tool steel offering different combinations of high thermal conductivity, high resistance to wear at elevated temperature and good hot yield strength.
Formvar is ASSAB’s new addition to its forging tool steel range. It is a significant upgrade from the market’s traditional H13 and H11 forging tools offering good tempering back resistance, hot yield strength and increased tool life. For a forging die, this means better resistance to hot wear and plastic deformation, which also leads to production cost efficiency.